20198745

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64123}}^1$

素因数の和:64141

約数の個数: 24

約数和(自身を含む): 40013376

約数和(自身を除く): 19814631

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64123, 192369, 320615, 448861, 577107, 961845, 1346583, 2244305, 2885535, 4039749, 6732915, 20198745]

約数ペア:

[(1, 20198745), (3, 6732915), (5, 4039749), (7, 2885535), (9, 2244305), (15, 1346583), (21, 961845), (35, 577107), (45, 448861), (63, 320615), (105, 192369), (315, 64123)]